A uniform mixture of two liquids that do not normally mix is known as what?

• A. Emulsion
• B. Solution
• C. Suspension
• D. Mixture

Answer: (A)

Emulsion is a mixture where two immiscible liquids are dispersed so that one forms droplets within the other. Even though these liquids don’t normally mix, vigorous blending or an emulsifier stabilizes the droplets so the mixture looks uniform for a time. Common kitchen examples are mayonnaise or a well-whisked vinaigrette, where oil droplets stay dispersed in water (or vice versa) thanks to an emulsifier like egg yolk.

A solution would require the liquids to dissolve into a single phase, which isn’t possible for immiscible liquids. A suspension involves solid particles dispersed in a liquid that can settle out over time, not one liquid dispersed in another. A mixture is any combination of substances, but it doesn’t specify that the liquids are immiscible and dispersed in this droplet form.